Automobile window sliding lock



29, 1936. CHANDLER 2,066,286

AUTOMOBILE WINDOW SLIDING LOCK Filed J an. 16, 1936 Patented Dec. 29,1936 UNITED STATES 2,066,286 I I AUTOMOBILE wmoow SLIDING LOCK PATENTOFFICE."

Davis, Lynn, Mass.

Application January 16, 1936, Serial No. 59,376

6 claims. (01. 292-275) My present invention relates to looks and moreparticularly to an automatic friction lock which is mountedupon a rackand which may he" slid along said rack and locked at any desiredposition on the rack by one operation of the operator.

My sliding lock is particularly adapted for use with automobile doorsfor raising and lowering and locking the slidingsash in such doors it.being apparent, of course, that such a sash lock may be used in othersashes exclusive of automobile doors. With such a sash lock as abovereferred to it is necessary that there be a'lever or other equivalentactuating element associated with the raising and lowering sashmechanism, as in .my copending application entitled Window elevatingmechanism, Ser. No. 59,375 filed January 16, 1936, in which my presentsash lock has been briefly indicated. I V

The principal object therefore, is an improved sliding sash lock forautomobile doors and the like.

Another object is a sliding sash lock which may be slid in a horizontaldirection along awindow sill, for instance, for the purpose of raisingand lowering the sash and at the same time automatically locking suchsash when the handle of said lock is released.

Other objects and novel features comprising the construction andoperation of the device. will be apparent as the description of the sameprogresses.

Referring to the drawing illustrating the preferred embodiment of myinvention,

Fig. 1 is a side elevation showing the side of the lock facing towardthe outside of the door;

Fig. 2 is another side elevation similar to Fig. 1 but showing the lockin a released position, the dot and dash lines showing the same lockreleased when the handle is thrown in a reversed direction, and

Fig. 3 is a vertical cross-section taken on the line 3-3 of Fig. 2.

Referring more in detail to the drawing, l indicates the outside panelof an automobile door. II indicates an inside panel of thedo-or to whichis usually attached the upholstery. On the inside face of the panel H ata point below the window sill I have attached a horizontal rack I2 bymeans of screws l3 and spacing co-llars I4.

The lock mechanism proper is mounted upon a plate I5. Back plates I6 andI1 are secured to the front plate I by means of screws I8, the platesbeing separated at the top by a gib I9 upon which the top of the rack I2rides and lower gibs and 2| teeth are guided. A pinion 22 engagingthe'rack teeth is secured between the plates I5 and I1 being solidlyfixed to a sleeve 23 drum 24. Surrounding the drum 24 is a coil againstwhich the rack which is jour- 'naled in the plates I5 and I1. Pressed onthe sleeve 23 on the front of the plate I5 is a brake normal position isslightly smaller than the outp side diameter of the drum 24. The twoends of the spring 25 are hooked as shown at 26'above studs 21. Belowthe'drum 24 and engaging the outer diameter of the spring coils isanangle member 28 which is secured by meansof the screw 29 and dowels 30to the plate I5.

When the sash lock is in the position indicated in Fig. 1 the spring 25grips the drum 24 tightly and if the lockis pushedfto-the' right orleftthrough a force applied to thebottom of the look through the lever 3 Iwhich ispivot e'd' to the plates I5 and I1 at 3I j th'e pinion which'engages the rack teeth cannot turn because the hooked ends 26 of thespring engage on one or the other of the studs 21, depending on thedirection of the outside force applied, and the turning of the drum 24tends to tighten up the coils of the spring 25 making it impossible forthe lock to travel on the rack I2. Because of this locking feature it isimpossible for the locking mechanism connected to the door and sash 32to be acted upon by any force applied to the sash itself. The only waythat the sash 32 can be moved is by an application of force applied tothe lever 33 which is pivoted to the plate I5 at 34.

When a force (F) is applied in either direction, as indicated by thearrows in Fig. 2, the lever 33 operates like a cam on the top of thepivoted lever 35. The lever 35 pivots down on the pivot 35, the camsurface 31 and the extension dog 38 bear against the hooked ends 26 ofthe spring 25 pushing them against the studs 21. The pressure of thelever 35 on the spring 25 tends to uncoil the spring increasing itsinternal diameter such that the drum 24 is released. As the pressure at(F) is continued the entire lock moves to the right or left, as the casemay be, and any sash elevating mechanism which may be attached to thelever 3I is operated to open or close the sash. When the pressure at (F)is discontinued and the lever 33 released, the spring which bearsagainst the under side of the lever 35, returns the lever 35 to itsnormal position as shown in Fig. 1, the spring 25 automatically seizingthe drum 24 and preventing it from turnrack, a lock casing slidablymounted upon said rack, a pinion journalled in'said casing and engagedwith the under side of said rack, a friction drumsolidly fixed to saidpinion, a coil spring tightly engaged around said drum, hooked endsformed on said spring, studs located adjacent said hooked ends on saidspring being normally out of engagement with said hooked ends, apivotedlever located above the said hooked ends and,

normally held out of engagement with said hooked ends, a pivoted leverlocated above the said first pivoted lever and adapted to depress saidfirst lever againstsaid hooked ends when said second lever is swung toone side or the other of said casing, a pivoted lever attached'to thebottom of said casing and adapted to be connected with a window sashoperating mechanism.

2. An automobile window lock comprising a rack, a lock casing mountedon'said rack, a friction drum and pinion mounted on said casing,

the said pinion engaging with said rack, a coil spring normally smalleron its internal diameter than said ,drum and adapted to be engaged oversaid drum, studs located in the side of said casing adjacent saidspring, anchor ends located on said spring, pivoted camlevers attachedto said casing normally out of engagement with said anchor ends andadapted to engage said anchor ends with said studs for the purpose ofdisengaging said spring around said drum, a lever pivoted to said casingand adapted to be connected to a window sash elevating mechanism.

3. In a locking device for a sash elevating mechanism, the combinationof a stationary rack,

a slidabie casing mounted upon said rack, a friclock.

tion drum and pinion mounted on said casing, the said pinion engagingwith said rack, a coiled spring friction brake tightly engaged aroundsaid drum, cams adapted to spread said spring, a pivoted lever attachedto said lock and adapted to connect with said sash elevating mechanism.4..In a locking device for a sash elevating mechanism, the combinationof a stationary rack, a friction drum attached to said pinion on theoutsideof said casing, a coil spring with anchor ends tightly engagedaround said drum in its normalvposition, pivoted cams adapted to expandsaid coil spring around said drum, a lever attached to said casingadapted'to form a link between said lock and said sash elevating mechanism. I

' 5. 'A look for automobile sashes comprising a fixedrack, a lock casingmounted upon said rack,

a pinioncontinuously engaged with'said rack,

afriction drum attached to said pinion, a friction coil spring normallycontracted andmounted around said drum, cams located adjacent saidspring adapted to expand said spring for the purpose of releasing saidspring from around said drum, and a sash operating link attachedto said6. A look for locking and operating a window sash and maintaining saidsash in a 'locked'position comprising in combination, a -rack, ajlockcasing slidably mounted on said racesm pinion engaging in said rack, afriction' drum' connected with said pinion, a cofilspring normally'engaging around saiddrum in a tightmanner and having hooked ends, camlevers attached to said casing and adapted toengagewith the hooked'endsfof the said spring, a pivoted link attached to said casingandadapted t'o'be connected with the operating mechanism connected withthe elevating mechanism of fsaid sash.

DANIEL L. CHANDLER.

